The call in question was on a Matt Lehman fumble at the goal-line that appeared to have been a touchdown. Officials ruled it a fumble on the field and upheld the ruling after a review.

The call took go-ahead points off the board and kept the Nittany Lions in play-from-behind mode late in the fourth quarter. Nebraska later added a safety on a Matt McGloin intentional grounding call and a late field goal.

The Cornhuskers tied the game 20 in short order in the second half, driving 75 yards in just over three minutes in their opening drive. Moments later, a Daimion Stafford interception set Nebraska up at the Penn State 4-yard line.

Two plays later, freshman running back Imani Cross found paydirt again with the game-tying score.

Penn State had an answer with a 13-play drive that ended with a 35-yard field goal by Sam Ficken. It was a good moment for the embattled Ficken, whose go-ahead kick was his sixth straight successful attempt.

Penn State's Michael Mauti stripped Martinez at the goal-line on the Huskers' next possession, which swung the momentum back in the Nittany Lions' favor. Martinez atoned after a Penn State punt, connecting with Jamal Turner on the eventual game-winning score.

Down 27-23 with 10:57 to play, Penn State drove 74 yards before turning it over on the fumble by Lehman.